the mordant in the gram stain procedure is
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Nursing Elites

NCLEX-RN

NCLEX RN Predictor Exam

1. In the Gram Stain procedure, which component acts as the mordant?

Correct answer: C

Rationale: In the Gram Stain procedure, the mordant is Gram's Iodine. The purpose of the mordant is to form a complex with the crystal violet, enhancing its ability to bind to the cell wall. Crystal violet is actually the primary stain used in the Gram Stain procedure to initially color all cells. Methyl alcohol is the decolorizer that removes the crystal violet from certain cell types. Safranin is the counterstain used to stain those cells that did not retain the crystal violet stain after the decolorization step.

2. The client is being discharged to a long-term care (LTC) facility. The nurse is preparing a progress note to communicate to the LTC staff the client's outcome goals that were met and those that were not. To do this effectively, the nurse should:

Correct answer: B

Rationale: To effectively communicate the client's outcome goals that were met and those that were not to the LTC staff, the nurse should draw conclusions about the resolution of the current client problems. Terminal evaluation is performed to determine the client's condition at discharge, focusing on which goals were achieved and which were not. Formulating post-discharge nursing diagnoses (option A) is not the most appropriate action in this scenario as it focuses on identifying potential problems after discharge rather than evaluating achieved goals. Assessing the client for baseline data (option C) is not necessary at this point as the focus is on evaluating outcomes rather than collecting baseline data. Planning the care needed in the LTC facility (option D) is premature as this should be done on admission to the LTC facility and not during the discharge process.

3. What is the most important step that healthcare personnel can take to prevent the transmission of microorganisms in the hospital setting?

Correct answer: C

Rationale: The most crucial step in preventing the transmission of microorganisms in the hospital setting is proper hand hygiene. Healthcare personnel should wash their hands thoroughly before and after each patient contact to reduce the risk of spreading infections. While cleaning the stethoscope with an alcohol swab between patients is recommended, it is secondary to hand hygiene. Wearing protective eyewear at all times is not necessary for routine patient care unless specifically indicated, and wearing gloves only when in direct contact with patients is important but not as critical as proper handwashing. Therefore, the correct answer is to wash hands before and after contact with each patient.

4. You are ready to wash your patient's face. You would start by washing what area of the face?

Correct answer: B

Rationale: When washing a patient's face, it is essential to start by cleaning the eyes. The eye area is considered the priority because moving from an area that can potentially be infected to areas of the face and body that are least able to become infected with a washcloth helps prevent the spread of germs. Washing the forehead, ears, or cheeks before the eyes may risk transferring bacteria to a more sensitive area like the eyes, which could lead to infections or other complications. Therefore, starting with the eyes ensures proper hygiene and reduces the risk of introducing harmful microorganisms to the patient's face.

5. When caring for a patient with latex allergy, the healthcare provider creates a latex-safe environment by doing which of the following?

Correct answer: C

Rationale: Creating a latex-safe environment for a patient with latex allergy is crucial to prevent allergic reactions. Using a latex-free pharmacy protocol is essential as it ensures that medications and supplies provided to the patient are free of latex components. Cleaning a wall-mounted blood pressure device may not be sufficient as the device itself may contain latex parts that can trigger an allergic reaction. Donning latex gloves, even outside the room, is not recommended as powder dispersal can cause issues; only non-latex gloves should be used in a latex-safe environment. Placing the patient in a semi-private room does not directly address the need to eliminate latex exposure from medical supplies and equipment, which is better achieved through a latex-free pharmacy protocol.

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